Nancy Wilson’s rhythm-guitar playing is under-sung hero of Heart’s sound. After auditioning for her sister Ann’s band with a performance of Yes’ “The Clap,” she transformed their sound—just check out the intro to “Crazy On You” to instantly hear the influence of her acoustic playing. And together, they transformed classic rock. On this episode, we talk about how Wilson’s acoustic and electric playing is the element that delivers the band’s signature sound. Lindsay Ell calls in to drop a line, and our hosts go shopping for Gibson Nighthawks and vintage Ovations.